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Hoffmann PP-2 TAB/4 is a routing machine equipped with four
carbide router bits, two on each side. This machine is designed
to rout slots for two Dovetail Keys in two work pieces simultaneously.
The router bits are installed in high-speed gear heads, which
are connected to separate motors with toothed drive belts.
The supplied 45 degree fence plate, which is guided in a keyway
in the machine table, is used to accurately position the material
on the table. The location of the dovetail slots for the Hoffmann
Keys is adjusted by simply moving this fence plate and by
setting the spacing between the Key slots.
The distance between the router bit centers can be adjusted
by the operator from 1 1/4" - 4" = 32-100mm. The
spacing is displayed on a mechanical counter with 1/10mm accuracy.
A hand wheel on the side of the machine is used to set the
desired distance; a locking lever locks the adjustment securely
in place.
The machine is equipped with a pneumatic foot switch to start
the routing process. Upon depressing the switch, the routing
sequence is initiated:
- pneumatic
clamp secures workpiece on machine table
- router heads
advance until the pre-set height position is reached
- router heads
return to base position
- pneumatic
clamp releases work piece
Output is approx. 16 routing strokes
per minute, which translates into 4 completely processed rectangular
frames. These numbers include material handling, but obviously
depend on routing depth, feed speed, material flow and operator
performance as well. Flow control valves on the main pneumatic
cylinder allow the operator to adjust the upward and downward
feed rate independently, depending on the material being processed.
An aluminum table provides a large
work surface; the steel cabinet has a 4" diameter dust
collection port on its backside for dust free operation.
The supplied router bits are solid tungsten carbide, made
to exacting specifications.
Depending on the routing depth and
the material to be routed, the useable cutter life is approx.
10,000 strokes. Every machine is shipped with a tool kit and
set-up jig, which allows a router, bit change in only minutes.
Diamond cutters are also available.
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